Although Warlock pets have been improved somewhat, their contribution to Affliction and Destruction DPS is marginal, at best. While these demons may not be buffed to the level of Hunter pets, their contribution to DPS and utility needs a little more tweaking, and the increased HP change in Patch 3.0.8 and modest DPS increase is a start. Eyonix gives absolutely no details about what improvements are on the table, but many Warlocks have had great input on the forums. We'll have to stay tuned.